Fine-grained PAT creation form fails silently on invalid expiration date

[tallneil]

🏷️ Discussion Type

Bug

💬 Feature/Topic Area

API

Body

When creating a fine-grained personal access token at https://github.com/settings/personal-access-tokens/new, the form submission fails with no visible error message when the custom expiration date input is rejected by native HTML validation.

Console error observed:
An invalid form control with name='user_programmatic_access[custom_expires_at]' is not focusable.

Relevant element:
<input class="form-select FormControl-input" aria-labelledby="expiration-label" min="2026-09-12" max="2027-09-11" style="background: none;" type="date" name="user_programmatic_access[custom_expires_at]" id="user_programmatic_access_custom_expires_at">

Impact: The browser blocks submission because the date input is invalid, but since the invalid control isn't focusable/visible in the normal flow, no error is shown to the user — the form just appears to do nothing on submit. Users have no indication why token creation failed or how to fix it.

Expected behavior: The UI should surface a visible, actionable error near the expiration field when the date fails validation (e.g. out of the min/max range), rather than failing silently.

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